20201001201 has 12 divisors (see below), whose sum is σ = 29180900112. Its totient is φ = 13466560536.

The previous prime is 20201001187. The next prime is 20201001203. The reversal of 20201001201 is 10210010202.

It is not a de Polignac number, because 20201001201 - 2⁶ = 20201001137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20201001203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132630 + ... + 240816.

It is an arithmetic number, because the mean of its divisors is an integer number (2431741676).

Almost surely, 2^20201001201 is an apocalyptic number.

It is an amenable number.

20201001201 is a deficient number, since it is larger than the sum of its proper divisors (8979898911).

20201001201 is a wasteful number, since it uses less digits than its factorization.

20201001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128940 (or 128937 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20201001201 its reverse (10210010202), we get a palindrome (30411011403).

Subtracting from 20201001201 its reverse (10210010202), we obtain a palindrome (9990990999).

The spelling of 20201001201 in words is "twenty billion, two hundred one million, one thousand, two hundred one".